Coma scale, best motor response, none, at hospital admission

This code indicates a complete absence of motor response when assessing a patient's neurological status using the Glasgow Coma Scale (GCS) upon their arrival at the hospital. It signifies the most severe level of motor impairment, suggesting profound brain dysfunction.

This code is used when GCS documentation at hospital admission explicitly states a "none" or "1" score for the best motor response. It applies to patients presenting with altered mental status due to trauma, stroke, anoxic brain injury, or other severe neurological insults.

• Ensure the documentation clearly specifies "at hospital admission" for the GCS assessment.
• Do not use this code if any motor response (even abnormal flexion or extension) is noted.
• This code should be sequenced as a secondary diagnosis, following the primary condition causing the altered mental status.